Refrigerating systems having differential valve to control condenser outflow
AssigneeTokyo Shibaura Denki Kabushiki Kaisha
InventorsTatsuo Tanaka, Toshiaki Kawamura
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Abstract
In a refrigerating system comprising a compressor, a condenser, a capillary tube, and an evaporator, there are provided a check valve on an inlet side of the condenser for preventing a reverse flow of refrigerant from the condenser to the compressor, and a differential valve connected to a delivery side of the condenser. One port of the differential valve is connected with the delivery side of the compressor, so that the differential valve interrupts the flow of the refrigerant from the condenser to the capillary tube upon interruption of the operation of the compressor thereby to improve the operational efficiency of the refrigerating system when the system is started again.
Claims5
A refrigerating system comprising a compressor, a condenser, a capillary tube, and an evaporator, which are connected in series for circulating a refrigerant therethrough, said refrigerating system further comprising:
- a check valve provided on an inlet side of said condenser for preventing a reverse flow of the refrigerant from said condenser to said compressor;
- and
- a differential valve having a first port connected with a delivery side of the condenser, a second port connected with an inlet side of said capillary tube, a third port connected with a delivery side of said compressor, and means for interrupting flow of the refrigerant from said first port to said second port when a pressure of the refrigerant at the first port is higher than that of the refrigerant at the third port.
Dependencies are inferred from the claim text.